Blockchain technology ensures data integrity by encrypting information across a network of nodes from "summary" of Blockchain Technology Explained by Alan T. Norman
Blockchain technology is designed to ensure data integrity by employing encryption techniques that secure information across a network of nodes. This network of nodes acts as a decentralized system where each participant holds a copy of the blockchain ledger. Each block in the chain contains a unique cryptographic hash that links it to the previous block. This creates a chain of blocks that are immutably linked together, making it nearly impossible to alter or tamper with the data. When a new block is added to the blockchain, it undergoes a process of validation by the network of nodes. This validation process involves solving complex mathematical puzzles that require significant computational power. Once a block is validated, it is added to the blockchain, and the information it contains is considered secure and immutable. Because each block is linked to the previous block through cryptographic hashes, any attempt to alter the data in one block would require changing all s...
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